相关实验视频
Updated: May 11, 2026

04:36
Assay for Adhesion and Agar Invasion in S. cerevisiae
Published on: November 8, 2006
两个酵母叉基因调节细胞循环和伪的生长.
1Department of Biochemistry, University of Washington, Seattle 98195-7350, USA.
Nature
|July 14, 2000
概括
叉头蛋白Fkh1和Fkh2调节了Saccharomyces cerevisiae中的细胞周期基因. 这些因素的丧失会破坏线粒分裂和M-G1过渡基因表达,影响细胞周期的进展和形态.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 细胞生物学 细胞生物学
背景情况:
- 细菌菌表现出细胞周期调节的转录,涉及大约800个基因.
- 一些共同调节的基因形成集群,例如'CLB2'集群,基因在早期的线粒分裂中达到顶峰.
研究的目的:
- 调查分叉转录因子Fkh1和Fkh2在调节细胞周期基因集群中的作用.
- 阐明"CLB2"和"SIC1"基因群中的Fkh蛋白的功能.
主要方法:
- 在野生型和fkh1 fkh2突变的Saccharomyces cerevisiae菌株中基因表达的分析.
- 染色体免疫沉以评估蛋白质与基因促进体的关联.
主要成果:
- "CLB2"群中的基因在fkh1 fkh2突变体中失去细胞周期调节.
- Fkh2蛋白与"CLB2"集群基因的促进体结合,将Fkh蛋白确定为关键调节体.
- 突变体中"SIC1"集群的异常调节,可能是由于Swi5和Ace2表达的改变.
- 这种fkh1 fkh2突变体表现出构成性的伪形态.
结论:
- Fkh1和Fkh2是Saccharomyces cerevisiae中"CLB2"基因集群的重要转录因子.
- 一个涉及Fkh蛋白,Swi5和Ace2的转录因子级联在细胞周期晚期运作.
- Fkh1和Fkh2在控制转换为伪头生长方面发挥着作用.
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